My girls absolutely destroy tennis balls, if your little guy is the same you might want to consider Chukkit branded ones. Tennis balls last my goldens seconds, these have lasted a year so far!

I sound like some kind of ad bot, but I used to spend so much money on tennis balls that I couldn't help myself :D

I knew one untrained Weimeraner and he was an absolute menace. Yours looks cheeky but very sweet!

Oh he's so cute! Please post monthly pupdates. (If you want. No pressure or anything)